gross



Feb. 7, 1956 c. J. GROSS 2,733,461

MACHINES FOR PRESSING SOLES ON SHOE BOTTOMS Filed March 17. 1952 10Sheets-Sheet 1 jm/en for Charles J. Gross Feb. 7, 1956 c. J. GROSS2,733,451

MACHINES FOR PRESSING SOLES 0N SHOE BOTTOMS Filed March 17, 1952 10Sheets-Sheet 3 fig. 3

29a 302 300 aoz 300 IIIIIIIIHIIHHIII HHIHHJH llllllllllmlllllll 3/4 3/21 155 j/NJ/Z yo 320 /42 i 320\ 322 [nvenior Charles J Gross H I B h: isAtijney Feb. 7, 1956 c. J. GROSS 2,733,461

MACHINES FOR PRESSING SOLES ON SHOE BOTTOMS Filed March 17, 1952 10Sheets-Sheet Invenfor Char/es J Gross may Feb. 7, 1956 c. J. GROSS2,733,461

MACHINES FOR PRESSING SOLES ON SHOE BOTTOMS Filed March 17, 1952 10Sheets-Sheet 5 fiwenfar Charles J Gross rzey Feb. 7, 1956 c. J. GROSS2,733,461

MACHINES FOR PRESSING SOLES ON SHOE BOTTOMS Filed March 17, 1952 10Sheets-Smut 6 mlllll [n venzor Feb. 7, 1956 c. J. GROSS 2,733,451

MACHINES FOR PRESSING SOLES ON SHOE BOTTOMS Filed March 17. 1952 10Sheets-Shea; 7

( aw w 33 47 7 A lglll entor Charles Grass jg V I an H By is litfiorhey433 34a Feb. 7, 1956 c. J. GROSS 2,733,461

MACHINES FOR PRESSING SOLES ON SHOE BOTTOMS Filed March 17, 1952 10Sheets-Sheet 8 m wv [n venzor Charles J Gross Feb. 7, 1956 c. J. GROSS2,733,461

MACHINES FOR PRESSING SOLES ON SHOE BOTTOMS Filed March 17, 1952 10Sheets-Sheet 10 United States Patent MACHINES FOR PRESSING SOLES 0N SHOEBOTTOMS Charles J. Gross, Melrose, Mass., assignor to United ShoeMachinery Corporation, Flermngton, N. J a corporation of New JerseyApplication March 17, 1952, Serial No. 276,952

36 Claims. (Cl. 12-36.8)

This invention relates to machines for pressing soles on shoe bottomsand particularly to machines for use in the cement attachment of solesto shoes.

Objects of the invention are to provide a multi-station machine havinginflatable pads with automatic mechanical means for applying pressure toa shoe and controlling inflation of the pad; also to provide in such anorganization suitable safeguards to guide the operator and to insureproper and safe operation of the machine.

In the illustrated machine, a turret carrying four pad boxes isprovided, each pad box supporting an inflatable pad having an inflatingvalve and a deflating valve and each pad being associated with screwmeans for pressing a shoe on the pad, there being provided at a loadingstation power-operated means for operating each screw means in turn toapply a predetermined pressure to the shoe and, by reversal, to relievepressure from the shoe, there being also at the loading station meansfor inflating each pad in turn to a predetermined pressure through theinflating valve and means for opening the deflating valve of each pad inturn.

Means is provided for holding shoe and sole gages in operative position,with manually operated means for releasing the gages at any time andmeans for automatically releasing the gages controlled by inflation ofthe pad.

Manually controlled means is provided for initiating the action of thepower-operated means for applying pressure to the shoe and inflation ofthe pad, and in case such application of pressure is unsatisfactorymanually operated means is provided for releasing the pad pressure andthen releasing the power-applied pressure on the shoe, operation of saidmanually operated means being conditioned on proper indexing of theturret. The turret being properly indexed, operation of the manuallyoperated means causes deflation of the pad at the loading station andpower operation of the screw means to release pressure on the shoe.

When pressure has been properly applied to the shoe, the turret may beindexed provided the gages have been released, provided thepad-inflating means is in operative position, and provided thepower-operated means for turning the screw means has been disconnected.

These and other features of the invention will appear more fully fromthe following description when read in connection with the accompanyingdrawings and will be pointed out in the appended claims.

In the drawings,

Fig. 1 is a front elevation of the machine;

Fig. 2 is a side elevation, partly in section, showing the screw meanson the turret for applying pressure to the shoe and mechanism foroperating the screw means;

Fig. 3 is an elevation of mechanism shown in Fig. 2 taken from theopposite side;

Fig. 4 is a front elevation of parts shown in Fig. 2;

Fig. 5 is a sectional view of the screw-reversing mechanism shown inFig. 4;

Fig. 6 is a front view, partly in transverse section, of parts shown inFig. 2;

Fig. 7 is a view of a treadle-controlled valve shown in Fi 2;

liig. '8 is a front view of the inflating and deflating valves;

Fig. 9 is a sectional view of the inflating valve;

Fig. 10 is a side elevation, partly in section, showing the inflatingnozzle and mechanism connected therewith;

Fig. 11 is a plan view, partly in section, of the control mechanism atthe front of the machine; 1

Fig. 12 is a detail of parts shown in Fig. 11;

Fig. 13 is a front elevation of control mechanism at the front of themachine, the front casing being omitted;

Fig. 14 is a diagrammatic plan view of the power connections to theturret and the screw means;

Fig. 15 is a diagrammatic view of the fluid-pressureoperated means forcontrolling the power operation of the means for applying pressure tothe shoe and the inflation of the pad;

Fig. 16 is a plan view, partly in section, of the clutch for controllingindexing of the turret;

Fig. 17 is a front elevation, partly mechanism for rotating the turret;and

Fig. 18 is a plan view of mechanism shown in Fig. 17.

As illustrated in Fig. 1, the machine has a turret 20 carrying four padboxes 22, the turret being mounted on ball bearings 23, 23 (Fig. 2) forrotation about a vertical post 24 secured to a base 25. Secured to theturret 20 is a ring gear 26 meshing in a l to 4 ratio with a gear 28(Fig. 1) which is driven through a one-revolution clutch 30 from a shaft31 (Fig. 14) connected by a belt 32 to a motor M. The clutch 30 may beof the type disclosed in United States Letters Patent No. 2,202,005,granted May 28, 1940, on the application of E. A. Holmgren, and is setto connect the motor M to the turret by leftwise movement of a handle 33(Fig. 1). The handle is fixed to a vertical shaft 34 having at its lowerend an arm 35 connected by a link 36 to the clutch 30, a pull on thelink serving to set the clutch.

A pump P driven by the motor M (Fig. 14) through the belt 37 suppliesair under pressure to a reservoir R (Fig. 15) through a pipe 38. The padboxes 22 are each provided with gage mechanism such as that disclosed inUnited States Letters Patent No. 2,558,847, granted July 3, 1951, uponthe application of Helge Gulbrandsen et al. At the front of the machineis a vertical bar 40 (Fig. .2) arranged for longitudinal movement in abracket 41 and having at its upper end a T-slotted head 42. The bar 40is normally lifted by a compression spring 43 arranged between the head42 andthe bottombf a counterbore in the bracket 41. Associated with eachgage mechanism carried by the turret is a bar 44 parallel to the bar 40and having a T-head 46, these T-heads being engaged in turn with theT-slotted head 42 on the bar 40 when the bars 40, 44 are in axialalinement. The bar 44 is arranged for longitudinal movement in acounterbore in a bracket 47 carried by the turret 20 and is sustained bya compression spring 48 in a counterbore in the bracket and confinedbetween a flange on the bar 44 and the bottom of the counterbore, itsupward movein section, of the ment being limited by engagement of thehead 46 with the bracket 47. Should the spring 48 fail to lift the bar44, the head 46 will, in its passage toward the load ing station, engagea. plate 49 (Fig. 13) supported on the frame, curved from the axis ofthe turret as a center and having its left-hand end bent downwardly sothat.

When the bar 40 is depressed to allow the gages to ena 3 gage a sole ona pad, fastener 50 is in the path of an arm 51 (Fig: 13) secured totheshaft 34' so' that theshaft cannot be turned far enough in itsclutch-tripping direction to operate the clutch-tripping arm 35 and link36; When the gages are out of operation, the arm 51 can pass under thecollar and, except for other conditions to be explained, the indexinclutch may be tripped. V p

The bar 40 is depressed to permit operation of the gages at the loadingstation to locate a sole on a pad 52 by means best indicatedin Fig. 15The lower end of thebar 40" carrier a piston 53" in cylinder 54. Thecylinder is supplied with compressedair from the reservoir R throughpipes 56', 5-8" and 59 leading to a valve V1 having a plunger depressionof which against a spring 62 opens the valve. A-treadle T-i' isconnected by a-link 64 to alever 66' one end of which is pivoted to thebar 4'0 and the other end lies over the plunger 6%. Depression of thetreadle opens the valve, allowing air to pass first m a chamber 70 andthence to the cylinder 54 above the piston and causing the piston andbar 40 to be depressed; The bar'4'0'is held depressed by a latch 72 en aing a notch 73 in. the bar. When the treadle T-1 is released the valveV-1 is closed by the spring 62 and the air in the cylinder 54 andchamber 70 passes out through a restricted passage 74* controlled by ascrew 75.

The latch 72 is pivoted at 76 to the bracket 41 and above the pivot isan arm 78 of the latch which is impelled by a compression spring 80",located between the arm and the bracket, to engage' the notch 73. Belowthe pivot 76 is an enlarged arm 82- of the latch which is bored toreceive a plunger 84 engaging a strut 85 on a front panel 86 of theframe; the bracket 41 being secured to the panel. The latchj72' may bereleased by air pressure supplied by a tube 87 to the plunger 84.

The latch 72 may be released rnanually at any time by downward pressureon a handle '88 (Fig; 2 connected to a vertical rod 90 sustained by aspring 92 on the rod between the handle 88 and the bracket 41, the lowerend of the rod having a slot94 engaging a pin in an arm 96 of the latch.

The mechanism for applying pressure to the shoe is similar to thatdisclosed in United States Letters Patent No. 2,621,348, grantedDecember 16', 1952, in the nameof the present applicant. The operator,after having vplaced a sole on the pad 52 at the loading station,depresses the treadle T-I to bring the gages into engagement with theedge face of the sole. He then places a shoe on the sole which also ispositioned on'the sole by the gages. He thenswingsa' bail 1 60 (Fig. 2')over the shoe against a tension spring and brings an abutment 104 (Fig.l) on the bail over the rear end of the last. This movement of the bailWill,- through a rod 106, move a hail 108 to locate a toe abutment 1H9thereon over the toe of the shoe. As shown in Fig. 2, each leg of thebail 10 0 is pivoted a't 11 0 to a not 112 and each leg of the bail 108is pivoted at 114 to a similar nut 11 6. Each nut has a projection 11Sslotted to engage an up right on a yoke 122 depending from the turret20, the nuts being thus prevented from turning. Screws 124 and 126',which respectively carry the nuts 1 12 and 116, are rotatably mounted inthe yoke 12 2 carried by the turret and are-provided' -at their lowerends with tooth clutches 128, 130 which cooperate at times withcorresponding toothclutches 132, 134 which are normally rotated in adirection to release pressure on the shoe but can be reversed to rotatethe screws in a direction to apply pressure to the shoe; As shown inFigl 3', both clutches v132, 134 are driven in the same direction by agear 136 meshing with a gear 138 connected to the clutch 132 and a gearmoraine-create the clutch 1 34. The gear 136 isoii a shaft 142 suitablyjournaled in the frame carrying a sprocket connected by a sprocket chain146th a sprocket 148 (Fig. 5) on a shaft 150. The

4, shaft is mounted on ball bearings in a casing 151 and carries a" gear152 meshing with twobevelgears 154-, 156 both loose on a shaft 158 onwhich is asprocket 160, .this sprocket being connected by a chain 161 toa sprocket 162 which is driven by the motor M (Fig. 14). The gears 154,156 (Fig. 5) are held in place by nuts 163 threaded on the hubs of thegears, the hubs having ball bearings 164.

Splined on the shaft 158' (Fig. 5) is a collar 166 hav ing on one sideteeth 168 to engage teeth on the gear 154 and on the other side teeth noto engage teeth on the gear 156. A groove 172' in" the collar" 166 isengaged by a yoke 174 on a shaft 176 which carries also an angle leverhaving arms 178,- 179. Movement of the arm 178 will slide the collar 166on the shaft 158 and reverse the direction of rotation of the sprocket148 and hence that of the clutches 132, 134.

The arm 178 is bifurcated at its upper end, the bifurcatio'ns havingholes in which is journaled a member 1'80 flattened between its ends.Through this flattened portion a piston rod extends, the right-handporti'on' lS i of the rod being larger than the left-hand portion 1'86(Fig. 5). At the junction of the two sizes of the rod is a set nut andnut 188 which bears on the member 180. On the end of the smaller portion186 of the rod is a nut and set nut 1'90 and between the nuts and themember 180 is a compression spring 192 Also between the bifurcated endof the arm 178 and the head of a cylinder 194 is a compression spring196.

The cylinder 194 is pivoted at 198 to a bracket 200 which is secured at202 to the casing 151 of the reversing mechanism. Air is admitted to thecylinder 194 through a flexible pipe 204 to move the piston 206 in thecylinder to the right, the piston rod then actingthrough the spring 192to move the arm 17S clockwise and shift the collar 166 to disengage theteeth 168 and engage the teeth with the teeth on the gear 156', thusreversing the direction of rotation of the sprocket 148 and hence thedirection 'of rotation of't he clutches 132, 134 to screw the nuts down.

Engagement of the clutches is eifected by mechanism shown in Figs. 2, 4and 6. When the anglerlever 178, 179 (Fig. 4)' moves clockwise asdescribed to reverse the rotation of the clutches, the arm 1 79 pulls upon a link 203 pivoted thereto at 210. The lower end of the link has aslot 211 engaging a pin 212 on a lever 214 pivoted at 216 to the casing151. The lever 214 has a roll 218' which lies in one or the other of tworecesses 220, 221 in alever 222 pivoted at 224 to the casing 151 andbearing on a stem 226 of a valve 228 held closed by a spring 229.Between the recesses 22:), 221 is a projection 230 which is engaged bythe roll 218 in its passage from one recess to the other to swing thelever 2'22 counterclockwise to open the valve 228, the'valve being heldopen by engagement of the lower end of the lover'- 222 with a latchlever 232 fulcrun'red at 234; The valve stem 226 has a port 236 which isopen when the valve is closed to exhaust air from the flexible pipe 233leading to a cylinder 240. The slot 211 in the link 2112' allowssurficient movement of the yoke 174 to operate the reversing mechanismbefore the valve 228 is opened. 7

The cylinder 24! has a piston rod-242 pivoted at 244 to a lug 245'on thecasing 151, the cylinder moving up and down with respect to its pistonin response to air pressure introduced through the valve 228" from apipe 24-6 and passing, when the valve is open, through the flexible pipe238, to the cylinder 240 above its piston causing the cylind'er to moveup. Asthe cylinder approaches its limit of upward movement it engages atappet 248 on the latch lever 232 and releases the lever 222, permittingthe valve 228 to be closed by its spring 229 and the cylinder 24% to beexhausted through the port 236,- whereupon the cylinder is drawn down bya spring 249' (Fig; 2).

The cylinder 240 (Fig. 2) is pivoted-at 250' to an arm 251 of athree-armed lever fulcrum'ed at 252 on the frame. To the: anti 251:.is;connected; one: end of. the: spring-.249,; the other end being; securedto a: fixed' partii of the. machine. An arm 254- of the lever carriesa=springr pressed. latch 256* adapted toengage a projection: on,alongitudinally' movablev bar 258.. A similar bar 260? is simultaneouslyoperated by a latch-262 on. an arm 264: of

anzangle lever fulcrumed at 266m the frame: andr having: a depending arm268- connected by an. adjustable: link. 270.

to.a third arm-272 on the lever fulcrurnedx at'2-52.

Upward movement of the cylinder 240 will therefore 132 and 130, 134 forspinning the screws. When the bar 258 is" drawnldown by upward movementof the: cylinder 24.0: it operates to setthe toothclutches-128, 132to=spin the; screw 124. The bar 258- is-1 depressed against thetensionof a spring 278 connected between. a pin 279" on the bar and apin 280- ona lever arm 282 until a latch 283 pivoted at 284 tothe leverarm 282; impelled by a. compression spring 285, engages a' notch 286 inthe bar The bar'is. connected by a link,

258; and.holds it down, 287 to a lever 288 fulcrumed at 289 on a bracket290;

The. lever 288 is branched to form". two arms, one2911 above a lever 292also fulcrumed at 289- and the: other 293. beneath. it. The arm 293carries. a: compression spring294 seatedpartly in the arm and partly inthe lever 292.. The arnr 291.carries a: screw- 296 to engage the lever292-when. the lever 288. is moved counterclockwise.

' The. lever 2532 has ayoke having arms 298 (Fig. 3-)-- embracinga'sleeve 300, the arms carrying rolls- 302 en-- gaging. a. groove304 inthe sleeve 30.0. The. sleeveis splined to ashaft 385 at. 306. (Fig. 6)and is movablelongitudinally. of the shaft which is being; spun by thegear. 13.8. As the bar 258- is drawn down, the: lever arm- 293' through.the spring 294 pushes: yieldinglyupward on thelever. 292,.causing. therolls 302 to lift, the. sleeve 300 andtengagethe tooth clutches 128,.132. to. spin thescrew 124inthe direction to draw. the bail 109 down;Depressionof. the. bar 268 at the same. time: as the bar. 258 operatesthro'ugh similar mechanism to setthe clutches 138, 134' torotate thescrew 126 anddraw the bail 108 down on the-forepart of the shoe.

Securedto the lower end ofi thelshaft 305. isa cup 307- (Figs; 3 and 6)and above the cup is a sleeve-308 which islrotatabl'y connected to. thecup by tongues-309 on the sleeve which extend down into. recesses 310.(Fig. 3) in the rim of'the cup3tll. In the upper portionlofthe sleeve308' are two. notches 312 with. downwardly and-inwardly I lBCIlHCClWfilliWl'llCll are. engaged by complemental pro' jections 314- on: thegear 138;. The sleever308 is sustained by a stiii spring 316 (Fig. 6),and the gear 138Wlll therefore rotate the shaft 385 because of; thepressure. of the spring upon; the sleeve to hold it. against: theprojections 314 carried by the gear 138 until resistance to movement ofthe shaft is built up by pressure on theworlc sufficieut to cause theprojections 314 to slip part way out of the notches 312, therebydepressing the sleeve 308"againstthe sprihg 316. The sleeve 308 has agroove 318 engaged byrolls320" on a yoke 322 (Fig; 6) forming partofthe. leverarm 282' fulcrnmed at 324 and carrying the latcht283l Thelever 282' has a surface 326 which, when the latch- 283" engagesthenotch 286 in the bar 258,. substantially engages a surface 328 onthe. bar. Therefore,v when the. sleeve 308 is, forced down, by relativemovement of the projection 314 and' the notch 312,, due to resistance ofthe shoe to pressure, the lever 282, 32-2 iszturned counterclockwise,the surface 326 engaging, the surface 328401 lift the; bar 258.. todisengage the. clutches 128,. 132,, a

tail 338 on. the. latch- 283 thenengaging, a stop screw' 3321.

on; the frame tamelease; the bar 258 which is thenyfree' to befurtherlifted by; the: spring 278,

A rod 333- (Fig; 2?); extends transversely of. the bars 258, 260 and isguided in a bracket 3341011111611'31116, a compression spring. 3375being mounted on the rod-- be.- tween the bracket and the pin inthe rod.The other end of the rod 333 is extended by a smaller rod 336 guided-in.asleeve 337 supported'in a bracket 338 on the. frame. The rod. 336 isconnected to a Bowden cable 339. As shown in Fig.6, the rod 333intersect'sthe bars 258-, 260 which have notches 3'40 permittinglongitudinal movementof therod' when the. bars are in their inoperativeon upper position. When the rod 333- is in its. normalposition-inresponse to the spring 335 there are slabbed-off places 341 onYthe rodopposite the bars 258,. 260 permitting normal operation. of the bars asdescribed, and, when the rod 333 is moved longitudinally against thespring 335 by a pull on the cable 339, circular p0rtions of the rod 333enter the notches 340 in the bars and prevent their operationt Thispull-v on the cable is effected by leftwise movement of the handle 33 ina manner to be described. Pressure on the handle 33' totrip the.indexing clutch will: therefore be ineffective unless the horizontal rod333' can slide by the vertical bars 258, 268,.whichcanonly happen whenthe bars are raised and the tooth clutches out of operation.

in each of the four pad boxes carried by the turret is. onevof theinflatable pads 52 each of. which is connected by a pipe 342 to. twovalves- (Fig. 8), an. infiatingvalve; 343? and a deflating valve 344,.thevalves being lined up in the direction of. rotation ofthe turret.When the:

turret stops at the loading station one. of the. exhaust valvesi344 isover a deflating lever 346 (Figs. l-land' l5) and afilling; valve 343isoverianinflating nozzle 348; The described operation of the screws124, 126 iswhich. may be depressed to release the latch by allever 357(Fig. 7) pivoted at. 358: and operated; by a rod1359" (Fig. 13 leadingto a horizontal; arm. 360 on a rockshaft 361 operated by a releasehandle 362'whichis heltl in upright position by a tension spring 364connected at one end to the lever 360 and at the other to theframe. Thestem 353 of thevalve. has a port 365 (Fig. 151)- in it which, whenthevalve is closed byits spring," linesup with passages in: the valvecasing to exhaust. fluid: from apipe 366'. Fluid; pressure: from thereservoir R passesthrough the pipes; 56,. 58 and a pipe 368 tothe valve-V-2 and,, when the valve' is open, tothe pipe 366 and thence through thepipe=204 to the cylinder 194 to operate the screW-reversing' mechanismas described. The

,pipe 366 is also connected with a pipe 369 t'o apilot valve PVcomprising a casingv 370 in which is 'a piston 371- connected' toe:valve stem 3'72 impelled upward by a spring. 374; Whem the valve isopen, air: can pass from a pipe'376 through. avpipel 378 tothe airnozzle348' and through the pipe 87* to operate the plunger 84 and release thelatch: 72-. and permit the gages. tobe moved out of. operative positionby the spring 482 When the valveisclosed, the pipe 378. is exhaustedthroughaport 380 in jthe valve stem 372- which then lines up with"passages in the valve casing: 370 leading to-the pipes 87 and 378.v I

The lever. arm: 282;-which moves up to disconnect the screw spinning;clutches, pulls on a Bowden wire 382 (Fig; 2-): to open a: valve V-3=(Fig; 15)" like the" valve V-2:' already described. The Bowden' wire382" is" connected: to anvarm 386\ oi anangle lever pivoted at" 388 and;having an: arm 390 to engage a= stem-3'92 of the valve to open it whenthe arm 386 is pulled down. The

arm 386 when depressed is engaged by a latch 396, the latch being biasedby a spring 398to engage a notch in the arm 386 when the valve is open.The latch 396 is pivoted at 400 together with a lever, one arm 402 ofwhich engages a spring 404 mounted in a casing 406. The tension of thespring may be adjusted by a screw 410 threaded through the casing andengaging a disk above the spring. Another arm 412 of the lever engages aplunger 414 in a cylinder 416 in the head of which is a small pipe 418leading from the pipe 376. Thus, pad-inflating pressure in the pipe 376will gradually build up in the cylinder 416 and depress the plunger 414which will turn the lever 402, 412 counterclockwise until a pin 420 onthe lever pushes the latch 396 ofi the arm 386 and allows the valve toclose and terminate the inflating operation after the pad has beeninflated to a pressure predetermined by compression of the spring 404.

The pipe 378 (Fig. 10) leads to a cylinder 422 fixed to a bracket 423fixed to the front panel 86 of the frame. A stern 424 of the inflatingnozzle 348 is slidingly mounted in the cylinder, the stem being pushedupwardly by the pressure from the pipe 378. In the nozzle 348 is a valve426 held closed by air pressure and having a stem 428 downward movementof which will open the valve.

The inflating valve 343 on the turret has the con struction best shownin Fig. 9. A valve stem 430 is guided for vertical movement by aperforated washer 432 held between the shoulder of a counterbore in abody portion 434 of the valve and a ring 436, the ring being engagedby ayielding washer 438 pressed upward by a screw cap 440 threaded on thebody portion 434 and having a snout 442. The valve stem 430 has afiange'444 held against the washer 438 by pressure in the pad. The openposition of the stem is limited by engagement of the flange 444 with theperforated washer 432.

The deflating valve 344 is similar to the valve 342 except that thevalve stem 430 extends beyond the snout 442 so that the valve stem isexposed for contact with a button 448 on the deflating lever 346. Thevalve in the inflating nozzle 348 is similar to the inflating valve ofFig. 9 except that, instead of the snout 442, it has an opening 450 toreceive the snout of the inflating valve. As the inflating nozzle 348 ispushed up by air pressure, the snout 442 enters the opening 450 of thenozzle and presses against the yielding washer of the nozzle, sealingthe two valves together, and the stems 428, 430 engage each other, thestem 430 of the inflating valve being first raised to its limit andfurther movement of the nozzle opening the nozzle valve permitting airto pass from the pipe 378 to the pipe 342 leading to the pad 52.

As the nozzle 348 rises, it operates a lever arm 452 I (Fig. 10)connected thereto by a yoke engaging a groove 454 in the nozzle. Thelever arm 452 is pivoted at 455 to the bracket 423 and has a dependingarm456 between which and a lug on the bracket is a spring 457 held inplace by a screw 458. The depending arm 456 is arranged to engage a reararm 459 of a lever pivoted at 460 to the bracket 423. A forward arm 461of the lever engages a notch 462 in a vertical bar 464pivoted at 466 tothe deflating lever 346 which is pivoted between its ends on the pivot455 of the nozzle lever arm 452 As the nozzle rises, the lever 452, 456is operated counterclockwise (Fig. IO) and the lever 459, 461 is turnedclockwise to raise the bar 464, turning the deflating lever 346clockwise and lowering the deflating button 448.

The bar 464 is extended by a rod 468 which passes through an ear 470 onthe bracket 423 (Fig. 13) and has thereon a compression spring 472confined between the ear 4 70 and nuts 474cm the end of the rod. Whenthe bar 464 rises, therefore, the spring 472 is compressed and, to holdthe bar up with the deflating button 448 depressed, a latch 476 isprovided. The latch is mounted for free swinging movement on thevertical rod 34 and when the bar 464 is raised the latch 476 engages anotch 478 in the bar (Figs. 12 and 13), the latch being impelled by acompression spring 480 (Fig. 11) on a rod 482 which passes through anear 484 on the latch and has a nut 485 on its end. The spring 480 isconfined between the ear 484 and an extension bar 486 which is pivotedat 488 to an upright arm 490 of the hub of the lever 360 (Fig. 13) sothat when the handle 362 is moved to the position there shown the latch476 will be withdrawn from the notch 478 and the bar 464 and the spring472 will react to raise the button 448 and open the deflating valve 344and at the same time the rod 359 (Fig. 7) is pushed to close the valveV2. When the release lever 362 is in its normal upright position thespring 480 urges the latch against the bar 464 and, when the bar israised, into the notch 47 8.

When the nozzle 348 is connected to the valve 343 for inflating the padat the loading station, it should be impossible to index the turret.Accordingly, there is on the shaft 34 an arm 492 (Fig. 11) which lies inthe path of the depending lever arm 456 when that is depressed byraising the nozzle 348. Thus, turning of the shaft 34 by the handle 33to index the turret is prevented. When after inflation the nozzle ismoved down by the spring 457 to clear the inflating valve the lever arm456 is above the arm 492 (Fig. 10) and the shaft 34 can be turned totrip the clutch and index the turret.

The turret should not be indexed While the screws are being operated toapply pressure to the shoe. Accordingly,the vertical shaft 34 has an arm494 (Fig. 10) pivoted at 496 to a rod 498 slidable in a sleeve 500 (Fig.11) held in the bracket 41, the rod being connected to the Bowden wire339 connected to the rod 336 (Fig. 2) which, as explained, cannot bemoved longitudinally unless the bars 258, 260 are up and hence thescrew-spinning clutches inoperative. The indexing handle 33 can be movedto the left to cause indexing of the turret only when the nozzle 348 isdown, when the gages are out, when the knurled collar 50 is above thearm 51 on the shaft 34, and when the tooth clutches 132, 134 aredisengaged so the rod 333 can be moved longitudinally against the spring335 by a pull on the Bowden wire 339 connected to the arm 494 on thevertical shaft 34.

The treadle T2 having been operated, the shoe is under final pressure atthe operating station. Should it be discovered that the shoe and soleare improperly positioned or if for any reason it is desired to releasethe shoe before indexing the turret, the release lever 362 (Fig. 1) ismoved toward the left. The lever is fixed to the rockshaft 361 on whichis an arm 501 carrying a roll 502 which lies directly under the ringgear 26 on the under side of which are four recesses 503 (Fig. 13) intoone of which the roll 502 may enter if the turret is' properly indexed;otherwise the release lever cannot be operated. When operated, it doestwo things: it exhausts the padand causes operation of the pin clutchesin reverse to relieve pressure on the shoe.

Swinging of the handle362 to the left (Fig. l) pulls on the bar 486(Fig. 11) to swing the latch 476 out of the notch 478 in the bar'464,permitting the spring 472 to pull down the deflating lever 346 and raisethe button 448 against the deflating valve 344 to open it and deflatethe pad 52 at the loading station. The horizontal arm 360 (Fig. 13) onthe rockshaft 361 is connected by the link 359 to the member 357 (Figs.2 and 7) which engages the arm 356 of the latch 355 of the valve V-2 andallows it to close, thus exhausting the pipes 366 and 204 (Fig. 15)leading to the cylinder 194. The spring 196 then reacts to slide thesleeve 166 into the position shown in Fig. 5 and open the valve 228(Fig. 4) to cause operation of the cylinder 240 with resultantsetting'of the tooth clutches to rotate the screws 124, 126

.in a direction to move the abutments away from the shoe.

firessur'e. onthe piston. 371.. of. the pilotvalve RV is also.-released, causing it to be closed by thetsprin g-374 tocuts ofii supplyof air to the nozzle 348.

If, after having. applied. pressure to; the shoe, its an pearance seemssatisfactory to. the operator, he will index the turret by. leftwardmovement of. the indexing. handle 33 (Fig. 1). It is safe to index. theturret only. if theinflatingnozzle is down, if the: gages. are.released, the. tooth clutches are not. operating and if thedeflating-button is down. The inflating nozzle will. be down because,after the application. of. predetermined pressure in the inflatable pad,the latch 396. was, released, allowing. the valve V3- to close. Upward.movement of the inflatingv nozzle, due to. the air pressure, acting on.the lever. 452,. turned it counterclockwise, causinggthe lever 459,, 461to turn. clockwise (Fig. 10), and lift the bar 464 until engaged by thelatch 476 in the notch. 478 (Fig. 12) so that. when the valve'v V-3closed, the air Wouldl be exhausted from. the. cylinder 422,. allowingthe spring 457 to react to move the nozzle down. The gages are released.because during inflation.- ofthepad air pressure inthe pipe 87 operatedthe lever 82 to release the latch 72. and allow the bar 40 to risevv andlift the collar 50- out of the path' of the arm 51 on the shaft 34. Thetooth.

cause when the inflating nozzle was raised the bar 464. was lifted andlocked up by the latch 476 and the lever- 34.6. was turned clockwise, tolower the button. 448.

Under the conditions above noted, the handle 33 can be turned to theleft to rotate the shaft 34, causing the arm 35 to pull on the link 36connected to a clutch lever 505 (Fig. 16) having a fixed pivot at. 506.Onthe lever 505 is an arm 507 carrying a spring plunger 508 which restsagainst an arm 509 carryinga roll. 510 which is in the path of a cam 512on a driven part 514 of the clutch..

The arm 509 is pivoted at 516. to the lever 505, and a stop arm 518 ispivoted at 506' and has its freeend in engagement with a projection 520integral with a halfround stud 522 carried by the driven member 514- ofvthe-clutch, the. driving member being 524. Thestop arm. 518 is upheld bya tension. spring 526 connected between apin on the arm 518 and a pin onthe arm 507. On the arm 509 is a projection 528 overylinga. lug. 530 on.the

stop arm 51850 that a pull on. thellink 36 willmove the. stop arm 518away from the projection 52.0;v allowing.

a spring plunger 532 acting-on the projection 520 to rotate the halfround stud 522 and. cause it to engage one of a series of half roundrecesses 534 formed in the driving member 524 of the clutch.. Duringvrevolution of the driven member 514 the cam 512. thereon engages theroll, 510 andmoves the arm 509 to. disengage the projection 528 from thelug 530. and allow the. spring-.526 to raise the stop to engage theprojection 520 after. the

' driven member 514 has made one revolution, the. half round stud 522being then. turned into the. positionshown,

freeing the driving member 524 from the driven member 514; As shown inFig. 1.6,v a second half round stud 535 is provided having twoprojections, one on each side. A projection 536 engages the springplunger 532 and. a-

vent turning the. turret though its rate of movement is.

projection 537 engages a plunger 538 impelled by" a compression spring539 so that when the projection 520 is released to set the clutch'both:studs v 522. and 535 will be turned but in opposite directions, oneengaging first one side of one of the recesses 534and theother'engagingfirst the opposite side of another one of the recesses. Thus, anyrelative movement between. the driving and driven members after thestuds engage is prevented.

As showninfiig. 17-, the driving menrbefiti hastfixedtthereto aworm.wheel. 540 drivenbya worm! 5.4L onzthea shaft-3l connected to the motorM. (Fig-. 14). [the driveni member 514. is secured to ashaft. 542.carrying; a gear.- 5T43.-which.is given a single revolution foreach-operation. of the clutch. The. gear 543 meshes-with a: largerimtgear. 544 loose on a hollow'shaft 546. The rim gfiflr'has teeth onrboth.sides of itsrim, the inner teeth (Fig..1 8) meshing; with a..pinion548.freelypivoted. to anqarm 5501 and to a disk 551'- having a. stubshaft 552 journaledin; the hollow shaft 546, the pinion 548 alsomeshing. with: a pinion 5.33 fixed toa shaft 554. The arm-SSQ-engagesian. eccentrc pin 555 secured to the shaft 542. Oneroetation of. the gear543turns-the rim-gear 544far enough:

. to impart one revolution to the pinion 548 whichimpar-ts:

one revolution to the pinion- 553,. the shaft; 554 and the gear 28thereon, the gear 28 imparting one-fourth, of. a revolution to theringgear 26. 7

However, during one-fourth of the revolution; of the; gear 543'theeccentric pin 555 is moving the pinioni548 to. the right (Fig. 18). todecelerate the rotation. ofythe pinion 553, during the next half of therevolution the eccentric. is. moving the pinion 548- to the left'andaccelerating the. rotation of the pinion- 553, and during the-last2quarter of a revolution thepinion'is moving. to the right: anddecelerating the pinion 553. Thus, the movement of the turret is.accelerated. and decelerated in accordance with. the principle disclosedin the James Patent No. 2314 278, granted March 16; 1943. 5.56pivotedrhr the disk 551 and meshing with the; rim: gear 5.44 and the pinion 553-are provided to distribute the, strain on the'mechanism anddo not affectthe. opera-. tion as explained.

As indicated inFig. .14, theshaft 31 hasaaworm engag.-- ingza-worm wheel560 located:in acasing 5.62 (Fig;- 1),, a shaft 5640f the wormWheelcarrying thesprocket 162-; connectedto the sprocket 160' bythesprocketi chain1t61'v sothat the tooth clutch members'132, 134 aredriven: continuously by the motor M.

When the: driving and driven members of the. clutcli are separated,there is nothing; so far. described, to pre'* 7 blocks- 57 0 ,one foreach padbox. As theturret, while: being indexed, approaches the end ofits movement onev of the blocks 570 engages an inclined surface 5.72 onamember-574 pivotedbetween its; ends toa fixed bracket. by a-screw' 576.An ar-m. 578" on the member 574.- is connected to a tension. spring 580theother end; ofwhich is: anchored to the frame and holds an adjustablestop screw'582. in the member 574- against the front panel.- 86?; of:the. frame. engage the. inclined surface 572* of the member 574 and. aface; 586 at right angles tothe-face 584-. The member 574. hasarighbangular notch 588 one face;ofwhich when-. thenotch. engages. theblock, is parallel to the surface 584 and the othenface of which isparallel to the sun-- face 5.86: As the, turret approaches restposition, under the influence of the momentum member 568' the: clutch--being. disconnected the block 570.: turns. the member 574-.

against the tension ofthe spring 58.0until its;surface:5.86" coincideswith: the corresponding parallel surface in the; notch. 588,; whereuponthe surface. 584'. is engaged by' action. ofv the spring: 58h: with thecorresponding parallel.

surface in the-notch: 5.88. and the movement of th'etturret' isarrested. since further movement: thereof. would in volvefurthertensioning of; the spring 580. since. the? surface 584- and thecorresponding surface of thetnot'clr which it engages are at asubstantial angle to the path;

Two idle pinions.

The block 570 has one. flat face.584 to 1 1 of movement of the block 570on the turret which, being then disconnected from the driving mechanismby release of the clutch, is merely drifting to a stop. Backwardmovement of the turret is positively prevented by engagement of thesurface 586 with the corresponding surface in the notch 588 and furtherforward movement of the turret is opposed yieldingly by pressure betweenthe'surface 584 of the block and the corresponding surface of the notch,the surfaces being then parallel and inclined to the direction ofmovement of the block. Thus, accurate registration of the turret withthe valves 343, 344 in vertical alinement respectively with theinflating nozzle 348-and the deflating button 448 is assured, and alsothe tooth clutches 128, 130 associated with one of the pads are inoperative relation to the tooth clutches 132, 134 mounted on the frame;

In removing shoes from the machine at the end of a run, the inflatingnozzle will not always be used and hence thedeflating button maybe up.To insure that the deflating button will be depressed each time theturret is indexed, a cam piece 590 (Fig. 8) is secured to the snout 442of each deflating valve 344 on the turret, the campiece having an edge592 which engages the deflating button 448 and depresses it as theturret moves from the loading station. The latch 476 will, of course,hold it down until released by the handle 362.

Assuming the motor M to be running and the tank R .to be providedwith'suitable air pressure by the pump P, the operator places a sole onthe pad 52 at the loading station where the gage operating bar 40 hasbecome connected at 42 with the bar 44 carried by the turret. Theoperator depresses threadle T-l (Fig. to open the valve V-1 and admitair to the cylinder 54, the piston 53 of which draws down the bars 40,44 to bring the gages into contact with the sole, the bar 40 being heldby the latch 72. Next a shoe is placed on the sole and located withrespect thereto by the shoe gages carried by the sole gages. The bails106, 108 are swung over the shoe, and the treadle T-2 is depressed,opening the valve V-2 to be held open by the latch 355. Air pressurefrom the pipe 368 then passes through lines 366 and'369 to the pilotvalve PV and through line 204 to the cylinder 194, movement of thepiston 206 of which reverses the direction of rotation of the pinclutches 132, 134 and opens the valve 226 to supply the cylinder 240with air, causing the pin clutches to be raised to engage respectivelypin clutches 128, 130 on the screws 124, 126. The spinning screws drawdown the bails 100,108 until the resistance of the shoe causes theprojection 314 (Fig. 6), in spite of the pressure of the spring 316, tomove partly out of the notches 312, causing the lever arms 282 to moveup and disengage the latches 283, whereupon the springs 27S draw up thebars 258, 260. The arm 28 2, through the Bowden wire 382, operates thelever 390 to open the valve V-3 to be held by the latch 396, causing airto pass from the line 56 through the pilot valve PV to the line 378leading to the inflating nozzle 348 and to the pad 52, also through thepipes 87 to release the gages. When the pressure in the pad issuflicient to overcome the spring 494, the latch 396 is released toterminate the application of pressure to the pad and thus apredetermined pressure is applied to the pad. When the stern 424 of theinflating nozzle was pushed up to connect it to the inflating valve 343,the deflating lever was locked down by the latch 476 and, when the latch396 was tripped off, the inflating nozzle was pushed down by the spring457.until the lever arm 456 was above the arm 492. The pin clutches areout so the rod 333 can move endwise in response to a pull on the Bowdenwire 339. Therefore the handle 33 can be swung to the left to set theclutch and rotate the turret one quarter of a turn. After being soturned, the clutch is thrown out and the turret left free to turn; atthis point, however, one of the blocks 570 will be within the notch 588,5.84 of the spring-pressed lever 574. Pressure of the 'notch on theblock will cause the turret to be exactly indexed.

The above operations will be repeated on each pad until thepads arefull. When the first shoe treated arrives at the loading station, thehandle 362 is moved to the left (Fig. 13), thus pulling on the bar 486(Fig. 11) to release the latch 476, whereupon the spring 472 (Fig. 10)reacts to operate the deflating lever 346, at the same time pushing onthe rod 359 (Fig. 13) to release the latch 355 (Fig. 2), allowing thevalve V2 to close and exhaust the line 366, 204 leading to the cylinder194. Movement of the piston 206 by the compressed spring 196 operatesthe lever 178 to reverse the direction of rotation of the shafts whichdrive the pin clutches and opens the valve 226 to operate the cylinder240 to connect the pin clutches and operate the screws to relievepressure on the shoe at the operating station.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. In a machine for applying pressure to shoe bottoms, the combinationof a plurality of inflatable pads, means for presenting the pad in turnat a loading station, screw means for applying pressure to a shoeassociated with each of the pads, power-operated means for operating thescrew means, operator-controlled means for initiating the connection ofthe power-operated means to the screwmeans, means for automaticallydisconnecting the power means from the screw means after a predeterminedpressure has been applied to the shoe, and means operated by saidautomatic means for causing inflation of the pads.

2. In a machine for applying pressure to shoe bottoms, the combinationof a plurality of pads, means for presenting the pads in turn at aloading station, a pair of abutments above each pad, a nut connected toeach abutment, a screw associatedwith each nut, rotation of the screwsapplying pressure to the shoe, a shaft at the loading station associatedwith each screw, operator-controlled means for connecting the shafts andscrews, and means for automatically disconnecting the shafts and screwswhen the pressure applied reaches a predetermined amount.

3. In a machine for applying pressure to shoe bottoms, the combinationof a plurality of inflatable pads, means for presenting the pads in turnat a loading station, a pair of abutments above each pad, a notconnected to each abutment, a screw associated with each nut, rotationof the screws applying pressure to the shoe, a shaft at the'loadingstation associated with each screw, operatorcontrolled means forconnecting the shafts and screws, and means for automaticallydisconnecting the shafts and screws when the pressure applied reaches apredetermined amount, and means responsive to the pressure applied tothe shoe for inflating the pad.

4. In a machine for applying pressure to shoe bottoms, the combinationof a plurality of inflatable pads, means for presenting the pads in turnat a loading station, screw means for applying pressure to a shoeassociated with one of the pads, power operated means for operating thescrew means, operator-controlled means for initiating the connection ofthe power-operated means to the screw means, means for automaticallydisconnecting the power means from the screw means after a predeterminedpressure has been applied to the shoe, and means responsive to saidpredetermined pressure for causing inflation of the pad.

5. In a machine for applying pressure to shoe bottoms, the combinationof a turret arranged for rotation about a vertical axis, a plurality ofpads on the turret, screw means for applying pressure to the shoe,power-operated means'for operating the screw means, and means com-Vprising a notched sleeve rotating with the screw means and a leverengaging said notched sleeve for automatically disconnecting thepower-operated means from the screw 17. In a machine for applyingpressure to shoe bottoms, the combination of a turret arranged forrotation about a vertical axis, a plurality of inflatable pads on theturret, means for rotating the turret to present the pads in turn at aloading station, a pair of abuments above each pad on the turret, a nutconnected to each abutment, a screw associated with each nut, rotationof the screws applying pressure to the shoe, a shaft at the loadingstation associated with each screw, operator-controlled means forconnecting the shafts and screws, means for automatically disconnectingthe shafts and screws when the pressure applied reaches a predeterminedamount, and means responsive to such disconnection for causing inflationof the pad.

18. In a machine for applying pressure to shoe bottoms, the combinationof a frame, a turret rotatable about. a vertical axis on the frame, aplurality of inflatable pads on the turret, said turret having aplurality of recesses therein one for each pad, power-operated means forrotating the turret step by step to present the pads in turn at aloading station, a normally closed deflating valve for each pad, a leverat the loading station for opening the deflating valve, a spring formoving said lever to deflating position, a latch for holding said leveraway from said valve, manually operated means engaging one of saidrecesses for releasing said latch, said manually operated means beinginoperable unless it engages a recess, blocks on the turret, and aspring-pressed member having a notch, said member being mounted on theframe, to engage one of said blocks when the turret is properly indexed.

19. In a machine for applying pressure to shoe bottoms, the combinationof at urret rotatable about a vertical axis, a plurality of inflatablepads on the turret, power-operated means for rotating the turret step bystep to prevent the pads in turn at the loading station, a normallyclosed inflating valve for each pad, a normally closed deflating valvefor each pad, deflating means at the loading station for opening thedeflating valve, a nozzle at the loading station adapted to be connectedwith the inflating valve to inflate a pad, fluid-operated means formoving the nozzle toward the inflating valve, and means operated by thenozzle for moving the deflating means away from the deflating valve.

20. In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, poweroperated means for rotating the turret step bystep to present the pads in turn at a loading station, a normally closedinflating valve for each pad, a'normally closed deflating valve for eachpad, a lever at the loading station for opening the deflating valve, aspring for actuating said lever to deflating position, a nozzle at theloading station movable toward the inflating valve, fluid-operated meansfor moving the nozzle to connect it to the inflating valve, connectionsbetween the lever and the nozzle for moving the lever against saidspring when the nozzle is moved toward the inflating valve, and a latchfor holding the lever against actuation by the spring.

21. In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, power-operated means for rotating the turret step bystep to present the pads in turn at a loading station, a normally closedinflating valve for each pad, an inflating nozzle at the loadingstation, means for connecting said nozzle to the inflating valve, avalve for supplying fluid under pressure to said nozzle, means forapplying a predetermined pressure to a shoe at the loading station, andmeans responsive to such pressure for opening the valve to supply fluidto said nozzle.

22. In a machine for applying pressure to shoe bot toms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, poweroperated meansfor rotating the turret step bystep to present the pads in turn at a loading station, a normally closedinflating valve for each pad, an inflating nozzle movable toward theinflating valve under fluid pressure at the loading station, meansincluding a valve for supplying fluid under pressure to move saidnozzle, means for applying a predetermined pressure to the shoe at theloading station, and means responsive to such pressure for opening thelast-mentioned valve to supply fluid to said nozzle.

23. In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, power-operated means for rotating the turret step bystep to present the pads in turn at a loading station, a normally closedinflating valve for each pad, an inflating nozzle at the loadingstation, fluid-pressure-operated means for moving said nozzle toward theinflating valve,

means for supplying fluid under pressure to said fluidpressure-operatedmeans, means for applying a predetermined pressure to the shoe at theloading station, means responsive to such pressure for establishingsupply of fluid to said nozzle, and means for discontinuing the supplyof fluid to saidnozzle after a predetermined pressure has been appliedto the pad.

24. In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, power-operated means for rotating the turret step bystep to present the pads in turn 'at a loading station, a normallyclosed deflating valve for each pad, a lever at the loading station foropening the deflating valve, a spring tending to move the levertowardthe deflating valve, a latch to hold the spring under compression,and means for releasing the latch to deflate a pad.

25. In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, power-operated means including a clutch 'forindexing the turret step by step to present the pads in turn at aloading station, manually operated means for setting the clutch, anormally closed deflating valve for each pad, a normally closedinflating valve for each pad, a nozzle at the loading station, means formoving the nozzle to connect it to the inflating valve, means preventingactuation of said manually operated meansto index the turret unless thenozzle is disconnected, and means to prevent opening of the deflatingvalve unless the nozzle is disconnected from the inflating valve.

26. In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, poweroperated means for indexing the turret step bystep to present the pads in turn at a loading station, a normally closedinflating valve for each pad, a normally closed deflating valve for eachpad, a lever at the loading station for opening the deflating valve atsaid station, a spring urging the lever to deflating position, a latchfor holding the lever against the action of said spring, means tofurnish fluid under pressure to said inflating valve, manually operatedmeans for releasing said latch, and means for permitting operation ofsaid manually operated means only when the turret is properly indexed.

27. In a machine for applying pressure to. shoe bottoms, the combinationof a turret'rotatable about a vertical axis, a plurality of inflatablepads on the turret, poweroperated means for indexing the turret topresent the pads in turn at a loading station, a deflating valve foreach pad, a spring-impelled lever for opening the deflating valve, alatch for holding the lever in inoperative position, and manuallyoperated means for releasing the latch.

28. In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, power-operated means for indexing the turrettopresent the pads in turn at a loading station, a deflating valve foreach pad, a spring-impelled lever for opening the deflating valve, a

latch for holding the lever 17 in inoperative position, manuallyoperated means for releasing the latch, and means to prevent operationof said manually operated means unless the turret is properly indexed.

29. In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, poweroperated means for indexing the turret step bystep to present the pads in turn at a loading station, a normally closeddeflating valve for each pad, a lever at the loading station for openingthe valve, a spring impelling the lever to valve-opening position, a camon the turret adjacent to each valve acting, upon rotation of theturret, to move said lever against said spring, and a latch for holdingthe lever'from movement by said spring.

' 30. In a machine for applying pressure to shoe bottoms,

the combination of a turret rotatable about a vertical axis, a pluralityof inflatable pads on the turret, poweroperated means for indexing theturret step by step to present the pads in turn at a loading station, anormally closed deflating valve for each pad, a lever at the loadingstation for opening the valve, a spring impelling the lever tovalve-opening position, acam on the turret adjacent to each valveacting, upon rotation of the turret, to move said lever against saidspring, a latch for holding the lever from movement by said spring, andmanually operated means for releasing said latch.

31. In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, poweroperated means for indexing the turret step bystep to present the pads in turn at a loading station, a normally closeddeflating valve for each pad, a lever at the loading station for openingthe ,valve, a spring impelling the lever to valve-opening position, acam on the turret adjacent to each valve acting, upon rotation of theturret, to move said lever against said spring, a latch for bold ventingoperation of said manually operated means unless the turret is properlyindexed.

32. In a machine for applying pressure toshoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, power-operated means for indexing the turret step bystep to present the pads in turn at a loading station, a normally closedinflating valve for each pad, a normally closed deflating valve for eachpad, a lever at the loading station for opening the deflating valve atsaid station, a spring urging the lever to deflating position, a latchfor holding the lever against the action of said spring, means to supplyfluid under pressure to said inflating valve, and manually operatedmeans for releasing said latch and discontinuing said supply.

33. In a machine for applying pressure to shoe bot-- toms, thecombinations of a turret rotatable about a vertical axis, a plurality ofinflatable pads on the turret, poweroperated means for indexing theturret step by step to present the pads in turn at a loading station, anormally closed inflating valve for each pad, a normally closeddeflating valve for each pad, a lever at the loading station for openingthe deflating valve at said station, a spring urging the lever todeflating position, a latch for holding the lever against the action ofsaid spring, a nozzle movable toward the inflating valve, means to'furnish fluid under pressure to move the nozzle into connection withthe inflating valve, and connections operated by such movement of thenozzle to retract said lever to be held by said latch.

34. In a machine for applying pressure of shoe bot toms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads-on the turret, powering the lever from movement by said spring,manually v operated means for releasing said latch, and means prepresentthe pads in turn at a loading station, a normally closed inflating valvefor each pad, a normally closed deflating valve for each pad, a lever atthe loading sta tion for openingthe deflating valve at said station, aspring urging the lever to deflating position, a latch for holding thelever against the action of said spring, a nozzle movable toward theinflating valve, means including a valve for controlling the supply offluid under pressure to move the nozzle into connection with theinflating valve, connections operatedby such movement of the nozzle toretract said lever to be held by said latch, and manually operated meansfor releasing said latch and causing said supply valve to close.

35. In a machine for applying pressure to shoe bottoms, the combinationofa turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, power-operated means for indexing the turret step bystep to present the pads in turn at a loading station, a normally closedinflating valve for each pad, a normally closed deflating valve for eachpad, a lever at the loading station for opening the deflating valve atsaid station, a spring urging the lever to deflating position, a

latch for holding the lever against the action of said 7 spring, anozzle movable toward the inflating valve, means to furnish fluid underpressure 'to move the nozzle into connection with the inflating valve,connections operated by such movement of the nozzle to retract saidlever to be held by said latch, manuallyoperated means for releasingsaid latch, and means permitting operation of said manually operatedmeans only when the turret is properly indexed.

36: In a machine for applying pressure to shoe bottoms, the combinationof a turret rotatable about a vertical axis, a plurality of inflatablepads on the turret, power-operated means for indexing the turret step bystep to present the pads in turn at a loading station, a normally closedinflating valve for each pad, a normally closed deflating valve for eachpad, a lever at the loading station for opening the deflating valve atsaid station, a spring urging the lever to deflating position, a

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